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All Journal Proximal: Jurnal Penelitian Matematika dan Pendidikan Matematika Babali Nursing Research Indo-MathEdu Intellectuals Journal Pedagogy : Jurnal Pendidikan Matematika Venn: Journal of Sustainable Innovation on Education, Mathematics and Natural Sciences ITQAN: Jurnal Ilmu-ilmu Kependidikan Socius: Social Sciences Research Journal BIODIVERS - BIOTROP Scientific Magazine Jurnal Informasi dan Teknologi (JITU)
Saiful Bachri
Fakultas Ilmu Administrasi Universitas Brawijaya
Religion Agriculture, Biological Sciences & Forestry Arts Humanities Biochemistry, Genetics & Molecular Biology Computer Science & IT Earth & Planetary Sciences Economics, Econometrics & Finance Education Energy Environmental Science Languange, Linguistic, Communication & Media Mathematics Nursing Physics Social Sciences Other

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Competition Study of Cowpea (Vigna unguiculata L. Walp) and Bidens pilosa L. Using Replacement Series Approach Bachri, Saiful; Subakti, Harun Dwi; Putri, Salsabila Adya Maharani; Tjirosemito, Soekisman
BIODIVERS - BIOTROP Science Magazine Vol. 2 No. 1 (2023): BIODIVERS (BIOTROP Science Magazine) : Agro-Eco-Edu-Tourism in Managing Tropica
Publisher : SEAMEO BIOTROP

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.56060/bdv.2023.2.1.1996

Abstract

Weeds disturb plants through competition or competition that occurs with cultivated plants. Weed competition can reduce crop production by up to 40%, as well as reduce seed quality. The amount of competition between weeds and plants is determined by the density of weeds, the length of time they grow with cultivated plants, and the type of weeds. Thus, it is necessary to increase productivity by considering the presence of weeds that can reduce production. On this basis, it is necessary to conduct research on the competition between cowpea and weeds using the replacement series method. Replacement series is a method used to evaluate competition between species by studying interspecific and intraspecific interactions of plant combinations. This research was carried out in the greenhouse of SEAMEO BIOTROP July – September 2021. This study used a simple randomized block design with a single factor, namely the composition of weeds with 5 treatment levels, namely: P1: 100% weeds. , P2: 75% weeds + 25% cowpeas, P3: 50% weeds + 50% cowpeas, P4: 25% weeds + 75% cowpeas, and P5: 100% cowpeas. The observation parameters are growth parameters represented by plant height variables and yield parameters are represented by dry weight. The results showed that the increasing proportion of weeds was accompanied by a decrease in the dry weight of cowpea. Vice versa. Then, the results of plant height measurements show that the increasing proportion of weeds and plants will be accompanied by a decrease in the height of their competitors. The results of the analysis of RYT values showed that there was competition between weeds and cowpeas at the P3 treatment level: 50% weeds and 50% cowpeas. Meanwhile, in other proportions there is a negative interaction.
Meningkatkan Minat dan Hasil Belajar Matematika melalui Media Audio Visual pada Siswa SDN 13 Tappong Bachri, Saiful; Tri Bondan Kriswinarso; Lis Sugianto; Sukmawati
Indo-MathEdu Intellectuals Journal Vol. 5 No. 1 (2024): Indo-MathEdu Intellectuals Journal
Publisher : Lembaga Intelektual Muda (LIM) Maluku

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.54373/imeij.v5i1.898

Abstract

This study aims to describe about increasing interest and learning outcomes through the application of visual audiovisual media to mathematical learning. This type of research is This type of research is class action research, The design of this research begins with planning, action, observation and reflection. This research was done at SDN 13 Tappong. The subjects in the study were 26 students consisting of 16 female students and 10 male students. This research instrument consists of an observation sheet on the implementation of learning and a sheet of observation of student activity, elevation of interest in learning, test of learning outcomes and documentation. Based on the results of the study, showed that there was an increase in the learning outcomes and interest of students after learning activities using visual audio media, starting from cycle I and cycle II and has experienced an increase, Cycle I learning outcome of students who achieved the Criteria of Success of 34.62%, student interest in learning reached 62%, and for Cycle II student learning output who reached the criteria of success of students of 92.31% and student learning interest reached 90%. Thus, it can be concluded that the use of visual media audio can improve the interest and learning results of SDN 13 Tappong students
Pengembangan Perangkat Pembelajaran Matematika Berbasis Masalah untuk Melatih Keterampilan Metakognitif Peserta Didik Bachri, Saiful; Sugianto, Lis; Kriswinarso, Tri Bondan; Lihu, Ikram
Itqan: Jurnal Ilmu-ilmu Kependidikan Vol. 13 No. 1 (2022): Itqan: Jurnal Ilmu-ilmu Kependidikan
Publisher : Fakultas Tarbiyah dan Ilmu Keguruan (FTIK) IAIN Lhokseumawe

Show Abstract | Download Original | Original Source | Check in Google Scholar | Full PDF (562.784 KB) | DOI: 10.47766/itqan.v13i1.132

Abstract

This research aims to develop the qualified instructional design in Mathematical problem-based learning to increase the Students’metacognitive skills on sine, cosine, and triangles area materials. It used thePlomp model development procedure that consists of the initial investigativephase; the design phase; the realization phase; the testing phase, the evaluation,and revision phase; and the implementation phase. Furthermore, to develop theinstruction, the design was adapted to the characteristic and learning syntaxbased on problem-based learning. The instructional designs that have beendeveloped through this research are lesson plans, material, student worksheets,and achievement tests. Based on the result and try-out that were analyzed, theinstructional design-based problem learning to increase the student’smetacognitive skills of the Tenth Grade of SMA Negeri 3 Palopo on sine, cosine,and triangles materials meets valid, practical, and effective criteria.
Co-Authors Abdul Rokhman Anas, Aswar Fitriani A, Fitriani Hermanu Joebagio Kriswinarso, Tri Bondan Kurniawati, Atik Fajar Lihu, Ikram Lis Sugianto Maulana, Muh. Ichwal Nur Hidayati Putri, Salsabila Adya Maharani Ruhama SAPUTRA, BAGUS DWI Subakti, Harun Dwi Sugianto, Lis sukmawati Tjirosemito, Soekisman Tri Bondan Kriswinarso Tri Yuniyanto Virgianti Nur Faridah, Virgianti Wibowo, Subekty